Long description: qcfig10
Alt text: A line graph tracking sample range in grams over thirty sample numbers, showing fluctuations relative to upper and lower control limits.
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- The vertical axis represents Sample Range in grams, ranging from zero to fourteen grams.
- The horizontal axis represents the Sample Number, marked from zero to thirty.
- The plot displays the sample range for thirty consecutive samples, fluctuating across the visible range.
- Two horizontal lines indicate control limits: the Upper Control Limit (UCL) is marked at 8.85 grams, and a center line (likely the mean, \(\bar{R}\)) is marked at 3.88 grams.
- The sample ranges start at a value between two and three grams for sample one, rising to around six grams by sample five.
- A significant peak is observed around sample ten, where the range reaches approximately 12.8 grams, which is above the UCL of 8.85 grams.
- Following this peak, the sample range drops sharply and fluctuates, generally staying between two and six grams for samples eleven through twenty.
- After sample twenty, the ranges remain relatively low, fluctuating between approximately one and four grams through sample thirty.